1927189140434 has 32 divisors (see below), whose sum is σ = 3056622739200. Its totient is φ = 910005183360.

The previous prime is 1927189140431. The next prime is 1927189140449. The reversal of 1927189140434 is 4340419817291.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1927189140431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1475147 + ... + 2455694.

It is an arithmetic number, because the mean of its divisors is an integer number (95519460600).

Almost surely, 2^{1927189140434} is an apocalyptic number.

1927189140434 is a deficient number, since it is larger than the sum of its proper divisors (1129433598766).

1927189140434 is a wasteful number, since it uses less digits than its factorization.

1927189140434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3931058.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 1927189140434 in words is "one trillion, nine hundred twenty-seven billion, one hundred eighty-nine million, one hundred forty thousand, four hundred thirty-four".